Lamp.



E. A. HAWTHORNE.

l LAMP.

APPLICATION FILED MAY-22.1914.

.Patented-Apr. 11, 1916.

-2 SHEETS-SWEET l.

fig-ff! In ven tor.' Ellewarhdjawhfne.

' w du s E. A( HAWTHORNE.

LAMP.

" APPLlcAnoN man MAY 22. 1914.

Patented Apr. 11, 19416.

2 SHEETS-SHEET 2- Ma-gy? ljiaitrsv'voiurn A. HAWTHoRNnor Barnenron'r, fcouivneiiwur;y i

` LAMP.

LHSAQQS i y implication iiiediiay 22,1914. -sria1No.s4o,34o.

To all .z'kzfzmayconcerm Beitknown that I, ELLswoR'rH A. HAW- Timmie, acitizen ofthefUiiitedStates, and a resident. ofv Bridgeport, county p of Fairfield, and Statey of` Connecticut, have invented an Improvement in Lamps', of which the following description, in connection with the accompanying. drawings, is a specification, like characters'fon the drawings representing like parts. i Y

Thisinvention relates tolamps, andfmore especially though` not exclusively, to a vehicle tail lamp .of the type wherein the light servesto. illuminate a number-,plate and a red window or rlens at the rear.

Myinvention will be b est understood by reference to the following specification, when` taken in'fconnection ywith the accompanying drawings of several rspecific embodiments thereof, ,While its scope will beinore'particu- .larly pointed out in theappendpd claims.v y

Inthe drawings :Figure `1 isV a sideelevationy .of onefoi'm of lamp embodying my in.

vention;iFig..2 is an elevation ofthe saine as viewed `from Vthe-'right side of Fig. 1;

Fig. 3 is' aplan sectional viewl on line 3-3 of Fig; 21;. F1g.4 1s a detailfplan section -of one endof the lamp casing, showing a slight modification of the cover fastening means; F1g.i5 is; a-central, longitudinal sectional View ofanotheijform of lamp shouting a diii'erent type Aofcover, fasteningy device;

Fig. .6 is a bottom plan of the form shown in Fig. 5 g Fig; 7 is an elevation` of one form of socket locking plate and socket, as viewed fromthe linside of thev casing; Fig. 8 is a similareleVation of another fornrof socket lockiiigplateandsocket; and Fig. 9 is `a similarelevation of still another form oi" socket 'locking plate ,and socket.

Referring to the'drawings, and to the several `embodiments of inyinvention which I- liave-selected for illustration, I have there shown a lamp coniprisingacasing 10, within which fis suitable 4light 'producing means, hereinin the 4-forni of'an electric incandescent bulb ll, the latter being mounted ina tubular socket 12, extending'throi'igh thefcasing and threaded intol an" appropriate supporty lamp casing.' l l Thetubu'lar `socket mayv be held against rotation by any `other appropriate means, hut herein it is'pi'ovidedwith means -interlocking with a plate inside. the casing.-

ing bracket 13, which latter is Secured to the The casing 4 i I Speeicationof Letters Patent. Patente Alfr'vll;

In the form shown in Figs. 2, Sand 7, o there is provided a plate 14,ha'ving an'aperture l5 toreceive the inner end of the lamp socket, and the latter is provided with one:

or more', herein two notches 16-in`its end lto receive corresponding teeth or iiangesV4 v17,y

projecting inwardly from the margin of vthr U aperture, whereby the socket, when screwed,

into place, is securely held against rotation]y i hy the plate, which in turn is secured to th inner face 'of the rear wall o. the lampcas ing. v l Referring to Fig. 8, this form differs fron that just described, in that therefis provided` i a plate 1S, having an elongated aperture ,19,

which is formed to receive a correspondingly shaped flange 20 on the lamp socket.

The forni shown in Fig. 9 differs from l' vided a plate 2l having an aperture 2.2 to re` that shown iii Fig. 8, in that there is proceive flangeQS of the socket as before,'but fv I in this case, the plate isfprovided with a' pairjw; p of raised flanges 24, projecting inwardlyand A t. i

overlying theft-lange 23er" the socketQwheife. by the latter is heldv against inward movement, `well as againstrotation.

In the ormshown in Figs,- I, Zand 3,' asia well as in that sliown'in Figs. :5' and' the casingis herein provided with an aperture 25, constituting a window, through which a:k

upon a number-plate in a wellknownn manf ner, and this opening is herein -provided with a light-transmitting element yor .Wine dowv 26. This may he held in placefby foneA a5l `part of the light is intendedv to be directed?,`y

or more, herein two, straps `27,reiten'dingY transversely entirely across the opening, and

one or more, hereintwo, fiangesufZS located at the respective ends of the opening,`:'jand*l` also nvei'lying. the window, or `lighttrans mitting elelnent. The latter i's made larg enough, so that its margin extends beyond', fj.' the edges of the opening, andoverlies the margin of the latter, as will be clearly inspection .ot Figs.'l y'55 derstood upon an and 6.

may Abe otherwise approprif I. I

ately` formed,. hut hei-ein consistsfoff a 'single seamless shell pressed vor drawnthroughsheet Y,

metal,and havingat its rear tside anopening l which is closed by a cover. or door 29,'Wh1c'hl herein serres as al mounting foralight-tran$1 y mitting element 30, the latter being herein Y the usual ,red windowlor lens'. In each ot the o forms shown, Igthis' cover is provided with ioor a marginal iange 31, overlying the adjacent edge of the casing, and serving to exclude the dust from the latter, as well as to provide a natural finish. This flange, moreover, constitutes a means for giving the cover increased strength and rigidity.

In the form shown .in Figs. 1, 2 and 3, the cover is provided with an aperture having an encircling flange 32, forming a seat for the light transmitting element 30. The latter is herein held in place by a plate 33, provided with an aperture, 34 of such size that its margin overlaps the margin of the lighttransmitting element, and there is interposed between the two a gasket 35, serving to exclude dust and moisture from the interior of the basing. The plate 33 may be secured to the cover',29`byl any appropriate means, as lor example one or more rivets 36. It will be observed that the plate 33 serves also as a reinforcement for the cover29.

In the form shown in Figs. 1 to 3, inclusive, the cover is secured in place by a fastening means; including one or more, herein a pair, of rearwardly extending arms 37.

In the form shown in Fig. 4, also, there is provided a similar arm 38. These arms may be, and preferably are, formed integral with the plate 33.

In the' form shown in Figs.' 1, 2 and 3, the arms 37 extend rearwardly through openings in the rear wall of the casing, and are provided exteriorly thereof with perforations 39, suitably formed to receive cotter pins 40; while in the Jform shown in Fig. 4, the arm is provided with a lug 41, perforated to receive a bolt 42 passing through the casing, and provided exteriorly of the latter with a nut 43. In this case, I prefer to secure the bolt to the rear in any appropriate manner, as by soldering the same thereto, for the reason that the head of the bolt is inaccessible, when the parts are being assembled and the nut screwed Ain place.

It will now' be apparent that, in both,A forms just described, I have provided meansf` intereengaging with the arms to prevent-the latter from being withdrawn toward the rear of the casing. By this means, the cover is securely held in place, vet may be quickly andconveniently removed to render the interior of the casing accessible for the purpolse of inspecting or replacing the electric bu b.

Referring to Figs. 5 and 6, the form there shown differs from that already described, as regards the cover fastening means, in that in this case, the cover is hinged to the casing by appropriate hinges 44, and is provided opposite the hinges with a spring catch-45, herein in the form of a tongue having.: a rounded projection 46, entering a depression 47 in the casing, thereby holding the cover in its closed position. Herein,

the tongue is provided with an upturned portion 48, by means of which it may be lifted to disengage it from,the depression for the purpose of opening the cover.

YWhile I have herein shown and described certain forms or embodiments of my invention for illustrative purposes, and have disclosed and discussed in detail the construction and arrangement incidental to several specific applications thereof, it is to be understood that the invention is limited neither to the Amere details or relative arrangement oi parts, nor to its specific embodiments herein shown, but that extensive "deviations from the illustrated forms olf/fembodiments of the invention may be made, without departing from the principles thereof. i;

Having thus described my invention, what I claim and desire by Lettelfs Patent to procure is:

1. A lamp comprising, in combination, light-producilig means; a casing therefor provided with an opening; a co/ver for said opening; light-transmitting means carried by said cover; and cover-fastening means extending from said cover toward an opposite wall of said easing, and having an operating portion whiph is accessible, from the exterior of said casiiig. v

2. A lamp compr'sing, in combimition, light-producing me: s; a casing therefor provided with an opening; a cover for said opening; light-tranen]itting means carried by said cover; and cover-fastening means extending from said cover through an opposite exterior wall of said casing.

3.1i lamp con'iprising, in combination, light-producing means; a casing therefor provided with an opening; a cover for said opening; light-transmitting means carried by said lcover; and cover-fastening means including an element extendinf' from .said cover through an opposite ext(A ior wall ot' `said casing` and an element secured thereto beyond said wall.

4. A lamp comprising, in combination,v

light-producing means; a casing therefor provided with an opening; a cover for said opening; light-transmitting means carried by said cover; and cover-'fastening means including a plurality ot' members extending from Said cover through an opposite wall of' said basing, and means interengaging therewith beyond said wall.

A lamp comprising, in combination, light-producing means; a casing therefor provided with an opening; a cover for said opening; light-transmitting means carried by said cover; and cover-'fastening means including an elen'ient extending from, said cover through an opposite wall of said casing, and an element extending therethrough beyond said wall.

(. A, lamp comprising, in combination,

f; light. bysi d cover; and cover-fastening means includingk a plurality of arms projecting 'from said cover through an 'opposite Wall of said casing and provided beyondsaid Wall with perforations, and fastening elements I extending through said perfor-ations to prevent said arms 'from being Withdrawn to- 'Ward the opposite side of said Wall.

7. A lamp comprising,- in combination, lightfproduciiig means; a casing therefor provided vwith an opening; a cover for said opening; light-transmitting means carriedv by said cover; cover' fastening means extending fromsaid-'cover interiorly of said casing and secured tothe Wall thereof.r

8. A lamp--comprising,' in combination, light-producing. mea-ns; a casing therefor provided Withan opening; 'a cover for said opening; lightltransmitting means carried by`said cover; 'cover fastening means .eX-'

tending from said 'coverin'teriorly of said casing thereof. V9 A .lamp comprising, ini combination,

light-producing meansya casing therefor" provided' vvithan opening; a cover for said opening;l vliglit-transmitting means carried by said cover, andcover fastening means comprising arms extending interiorly' ofl said casing and engaging-a Wall thereof.

10;, A lamp-comprising', in combination,

light-producing means; a casing therefor provided withanopening; a cover for said opening, said cover `oeing provided with an "aperture and an outwardly projecting flange formingjan .encircling seat; Aa light-,transmitting 'element seated against said seat;

and means-for holdingsaid element against .'said seat-including an apertured element '.whose inner margin overlies the margin of said. light-transmitting element, 'said aper# tiired element providingmeansto secure theY cover tothe casing. I

11. A 'lamp'compr1sing, in combination, light-producing means; a casing therefor provided with an opening; a vcover for said opening, said cover being provided with an aperture .and an outwardly projecting flange 'forming iin-.encircling seat smaller'tlian said opening; a light-.transmitting element ,seated against said seat andI also smaller than said opening; `and means for holding said element againstfsaid seat-includiiigan apel; turedelement ivhose inner margin overlies the margin of "said vlight-transmitting element..

12; A lam'p comprising; iiicoiiibination, iight-producing means;'ai casing thereforpiovidcd with anopening; Iacover for said opening; said cover being provided with an' aperture and an outwardly pr-ojectingi'flange forming an encircling seat smaller than said ing margin of the holding element;-

'and secured to the'opposite'wa-ll' a Asocket th'r'ea movement of translation;v4

vlightproducing means; a Casin 1 therefor,

`ting elcinentjat said' opening, and flanges adjacent said. opening -1ight' transmi tting Ielement ther'eoverf light-transmitting element `and, ith' i3. A imap comprising; in -Combinaion,vs' light-producing means; a, casing therefor Y' l provided'i'vith an opening;a cover for said. f

opening, said c over` being providedvvith an said element in place including'a plate'overi lyingy the margin of said'element; andfo'ne] `or-'more fasteningv devices to secnresaid plate to said cover. f-

'14, [A lamp comprising,' in combination,-l liglit-producing means; a casing therefor; a' soeketithreaded throughthe Walli'of thev'cas' ing to receive said light-producing means .9U

'and coperating means on .the socket and' casing to securer'them against relative" rotation when the socket'is `screwed home. 15. A lamp compr1s1ng; 1n combination;

light-producing :means; a'fasing thereforgf ed through theivallof the casing to receive said lightsprodiicing .means-f and Acoperating 'means on tlie socket and Acasing to secure themagainstjrelativefrotation and translation whenythejsocket-fis190l l 16; A lamp. comprising,=incoinloination;` y' lightsproducing. inea-11's; a vcasing" therefor; va socket extending throughthe wall ofthe easing to receive saidlight-producingmeans; 105

said socket being flattened to present7nn circular surfaces and coperatingg surfaces` carried by' the casing vto secure the two against relative rotation.`

17. A vlamp comprising, light-producing ineaiis; a casing therefor; a l socket extending throughthe wall-ofthe casing to wreceive said"`lightsproducing means, no'ncircular surfaces on the socket and cooperating 4surfaces carried' by theca'sin'g to; 1 15, `secure the tivo against relative rotation, andi.

flanges carried by the Casin g to limit relative'` '.18. i lamp comprising;incombination an. opeiiiiigin said casing; alia ttr'an'sinitf` securing thelflighjtr element", 1

19.' A lampv cbinprising,` iin-combination, mi

light-producing means.; a casingt'therefr.; i

anopeningin said casing.; lightitransmitf ting element at' said;Qpeing,and-members 'bridgingv said opening and securing the inf'combination-11 f 20. A lamp Comprising, in combination, In testimony whereof, I have signed my hght-producmg means, a casing therefor; name to this speclcation 1n the presence of an opening 1n said casing; a 11ght-transm1ttwo subscrlbing Witnesses.

ting element at Said opening, members ELLSWORTH A. HAWTHORNE. 5 bridging said opening, and anges adjacent Witnesses:

said opening which secure the light-trans- E. STEWART HAWTHORNE,

mitting element thereover. E. HORACE HAWTHORNE. 

